Calculation and drawing of construction elements in engineering design

Abstract

The problems of automated design system in constructions are presented in the article.Two parts of engineering design are separated: calculation (stress and strains or forces and displacements finding, calculation of useful cross sections and selection of unabated ones from existing assortment) and drawing (construction elements modeling and specification formation). A question, how construction calculation and drawing are separate processes and how they can be mixed actions is analyzed. Literature about Unified Modeling Language usage for designing variuos systems is presented and examples using Visual Basic programming language are referred. A part of a steel plate truss node project is presented by Unified Modeling Language. A sequence diagram is explored and two types of statechart diagrams are created based on the view of the two parts of engineering design. The first type is calculation and drawing of each object whereas the second one is calculation and then drawing all objects. The statechart diagrams are analyzed and both advantages and disadvantages are shown. A design system of steel plain truss node"s graphical result, node with specifications is presented and finally the conclusions are made.